20150646002220 has 24 divisors (see below), whose sum is σ = 56421808806384. Its totient is φ = 5373505600576.

The previous prime is 20150646002213. The next prime is 20150646002239. The reversal of 20150646002220 is 2220064605102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167922049959 + ... + 167922050078.

It is an arithmetic number, because the mean of its divisors is an integer number (2350908700266).

Almost surely, 2^{20150646002220} is an apocalyptic number.

20150646002220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20150646002220 is an abundant number, since it is smaller than the sum of its proper divisors (36271162804164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20150646002220 is a wasteful number, since it uses less digits than its factorization.

20150646002220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335844100049 (or 335844100047 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The spelling of 20150646002220 in words is "twenty trillion, one hundred fifty billion, six hundred forty-six million, two thousand, two hundred twenty".